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22 results for “Synodontis”
Figure 1 in On the occurrence of the Synodontis eupterus (Mochokidae) in the Adriatic drainage system of Croatia: a case of an introduced aquarium species and suggestions for alien species detection measures
Figure 1. – Synodontis eupterus (from Mala Neretva River) (TL = 193 mm) (catalogue number SE-IOR 8112017).
Fig. 61. Synodontis eupterus, 183 in The non-native freshwater fishes of Singapore: an annotated compilation
Fig. 61. Synodontis eupterus, 183 mm SL, Pandan Reservoir.
Fig. 18. Synodontis eupterus, 112.6 in The non-native freshwater fishes of Hong Kong: diversity, distributions, and origins
Fig. 18. Synodontis eupterus, 112.6 mm SL, Tai Po Kau Nature Reserve.
Data from: Continental diversification of an African catfish radiation (Mochokidae: Synodontis)
Despite African rivers containing high species diversity, continental-scale studies investigating the mechanisms generating biological diversity of African riverine faunas are limited compared to lacustrine systems.To investigate the build up of diversity in a tropical aquatic continental radiation, we test different models of lineage diversification and reconstruct the biogeographic history in a species-rich siluriform genus, Synodontis (~130 species), with a broad distribution across all major tropical African drainage basins. The resulting robust species-level phylogeny (~60% complete, based on a multigene dataset) exhibits a near constant rate of lineage accumulation throughout the mid-Cenozoic to Recent, irrespective of missing species and despite the changing environmental conditions that were prevalent during this time period. This pattern contrasts with the findings for species-level diversification of large clades that commonly show an early burst of cladogenesis followed by declining rates through time. The identification of distinct biogeographic cladesdemonstrates acorrelation between river hydrology and cladogenesis, although there is evidence of recent repeat dispersal into the southern range of the focal group.We conclude that diverse freshwater fish radiations with tropical continental distributions represent important organisms to test hypotheses of diversification and investigate the effects of palaeo landscapes and climates on present day biodiversity.
FIGURES 36–40 in Tapeworms (Cestoda: Proteocephalidea) of Synodontis spp. (Siluriformes) in Africa: survey of species and their redescriptions
FIGURES 36–40. Eggs of Proteocephalus synodontis Woodland, 1925 from Synodontis schall, Lake Turkana, Kenya (36, 37) and S. schall, Khartoum, Sudan (38), and P. membranacei Troncy, 1978 from S. membranacea, Lake Chad, Chad (39, 40). Fig. 39—syntype of P. membranacei (MNHNP 1116H); Fig. 40—syntype of P. largoproglottis (= syn. of P. membranacei; MNHNP 1115H). Abbreviations: em—embryophore; oe—outer envelope; on—oncosphere. Scale bars = 20 µm.
FIGURES 25–35. Proteocephalus synodontis Woodland, 1925 in Tapeworms (Cestoda: Proteocephalidea) of Synodontis spp. (Siluriformes) in Africa: survey of species and their redescriptions
FIGURES 25–35. Proteocephalus synodontis Woodland, 1925 from Synodontis schall, Lake Turkana, Kenya (25–33) and P. membranacei from S. membranacea, Lake Chad, Chad. 25. Scolex, dorsoventral view (note accumulation of gland cells in the apical region—gc). 26. Scolex, longitudinal section. 27, 28, 34, 35. Cross sections of pregravid proglottides at the level of ovary (27, 34), cirrus-sac (28) and testes (35). 29. Premature proglottis, dorsal view. 30, 31. Gravid proglottides of different shape, ventral view. 32. Pregravid proglottis, ventral view. 33. Terminal genitalia, ventral view (note vaginal sphincter—vs). Fig. 34—syntype of P. membranacei (MNHNP 1116H); Fig. 35—syntype of P. largoproglottis (= syn. of P. membranacei; MNHNP 1115H). Abbreviations: cm—circular musculature of suckers; cs—cirrus-sac; do—dorsal osmoregulatory canals; dv—dorsoventral muscle fibres; gc—gland cells; lm—longitudinal internal musculature; mg—Mehlis' gland; od—oviduct; ov—ovary; sc—secondary osmoregulatory canals; sd—sperm duct (vas deferens); te—testes; ud—uterine diverticulum; uouterine orifice; ut—uterus; vd—vitelloduct; vi—vitelline follicles; vo—ventral osmoregulatory canals; vs—vaginal sphincter. Scale bars = 500 μm (25–32, 34, 35); 250 µm (33).
FIGURES 14–24. Proteocephalus synodontis Woodland, 1925. 14 in Tapeworms (Cestoda: Proteocephalidea) of Synodontis spp. (Siluriformes) in Africa: survey of species and their redescriptions
FIGURES 14–24. Proteocephalus synodontis Woodland, 1925. 14, Holotype (BMNH 1961.4.10.87–102), Khartoum, Sudan, scolex, dorsoventral view. 15, 17–20. Apical organs. 15. Holotype, Khartoum. 17. From Synodontis schall, Girba, Sudan; 18. Immature tapeworm from Synodontis schall, Lake Turkana, Kenya; 19. From Synodontis schall, Kostí, Sudan; 20. From Synodontis caudovittata, Kostí, Sudan. 21, 24. Immature proglottides from S. caudovittata, Kostí, Sudan. 22. Holotype, immature proglottis (note median extent of testes not reaching to uterine stem). 23. Holotype, cross section of gravid proglottis. Abbreviations: ao—apical organ; cs—cirrus-sac; do—dorsal osmoregulatory canals; dv—dorsoventral muscle fibres; gc—gland cells; lm—longitudinal internal musculature; ov—ovary; sd—sperm duct (vas deferens); te—testes; ud—uterine diverticulum; uouterine orifice; ut—uterus; vc—vaginal canal; vi—vitelline follicles; vo—ventral osmoregulatory canals. Scale bars = 100 μm (14, 16, 21–24); 50 µm (15, 17–20).
FIGURES 1–13 in Tapeworms (Cestoda: Proteocephalidea) of Synodontis spp. (Siluriformes) in Africa: survey of species and their redescriptions
FIGURES 1–13. Scanning electron micrographs of the scoleces of Proteocephalus spp. from Synodontis catfish: P. synodontis Woodland, 1925 from S. schall, Lake Turkana, Kenya (1–3, 7, 8) and from S. schall, Kostí, Sudan (4–6); P. membranacei Troncy, 1978 from S. membranacea, Lake Chad, Chad, syntype (MNHNP 1116H; 9, 10); P. largoproglottis (= syn. of P. m e m - branacei), syntype (MNHNP 1115H; 11–13). 1, 4, 9, 11. Dorsoventral view. 2, 5, 10, 13. Lateral view. 3, 6, 12. Apical view. 7, 8. Papilliform filitriches on the external rim and internal surface of suckers, respectively (see Fig. 1). Scale bars = 100 μm (1–6, 9, 11–13); 50 μm (10); 3 μm (7, 8).
Synodontis membranacea decontaminated FSCR
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Synodontis membranacea decontaminated gx
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Figure 11 in Designation of a neotype for Synodontis schall (Bloch and Schneider, 1801) and description of two new species of Synodontis (Siluriformes: Mochokidae)
Figure 11. Scatterplot of the orbit diameter (OD % SL) against SL (mm) of different populations of S. schall sensu stricto (n581).
Figure 9 in Designation of a neotype for Synodontis schall (Bloch and Schneider, 1801) and description of two new species of Synodontis (Siluriformes: Mochokidae)
Figure 9. Neotype of Synodontis schall MNHN 1898-0131: Assouan (Egypt), Nile River, Coll. Chantre, 239 mm SL.
Figure 10 in Designation of a neotype for Synodontis schall (Bloch and Schneider, 1801) and description of two new species of Synodontis (Siluriformes: Mochokidae)
Figure 10. Scatterplot of the maximum height of the adipose fin (AFH % SL) against SL (mm) of different populations of S. schall sensu stricto (n581).
Figure 6 in Designation of a neotype for Synodontis schall (Bloch and Schneider, 1801) and description of two new species of Synodontis (Siluriformes: Mochokidae)
Figure 6. Scatterplots of (A) orbit diameter (OD % SL), (B) pectoral girdle width (PGW % SL), (C) prepectoral length (PPcL % SL) against SL (mm), and (D) caudal peduncle depth (CPD % HL) against orbit diameter (OD % HL) of the specimens different from S. schall sensu stricto (n524). ©5specimens from the Ogun (Nigeria), Oueme (Benin) and Mono (Togo) rivers, ‵5specimens from the Kogon River (Guinea),.5specimen from Fatala River.
Figure 5 in Designation of a neotype for Synodontis schall (Bloch and Schneider, 1801) and description of two new species of Synodontis (Siluriformes: Mochokidae)
Figure 5. PCA on the measurements of all specimens different from S. schall sensu stricto (23 variables, n521). ©5specimens from the Ogun (Nigeria), Oueme (Benin) and Mono (Togo) rivers, ‵5specimens from the Kogon River (Guinea).
Figure 7 in Designation of a neotype for Synodontis schall (Bloch and Schneider, 1801) and description of two new species of Synodontis (Siluriformes: Mochokidae)
Figure 7. Holotype of Synodontis ouemeensis MRAC 97-007-P-0012, Avagbodji (Benin), Oueme River, Coll. P. Vandewalle, 108 mm SL.
Figure 4 in Designation of a neotype for Synodontis schall (Bloch and Schneider, 1801) and description of two new species of Synodontis (Siluriformes: Mochokidae)
Figure 4. Scatterplot of the width of the premaxillary toothplate (PMW % SL) against SL (mm) for all examined S. schall specimens (n5105). Z5S. schall sensu stricto, m5all other specimens.
Figure 2 in Designation of a neotype for Synodontis schall (Bloch and Schneider, 1801) and description of two new species of Synodontis (Siluriformes: Mochokidae)
Figure 2. Schematic illustration of the measurements taken on each specimen (modified from Skelton and White 1992).
Figure 3 in Designation of a neotype for Synodontis schall (Bloch and Schneider, 1801) and description of two new species of Synodontis (Siluriformes: Mochokidae)
Figure 3. PCA on the measurements of all examined S. schall specimens (23 variables, n592). Z5S. schall sensu stricto, m5all other specimens.
Figure 8 in Designation of a neotype for Synodontis schall (Bloch and Schneider, 1801) and description of two new species of Synodontis (Siluriformes: Mochokidae)
Figure 8. Holotype of Synodontis kogonensis MRAC 92-059-P-1933: Ndyarendi (Guinea), Kogon River (11°219–14°309W), Coll. G. Teugels et al., 108 mm SL.
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